The main environmental biodegradation product of glyphosate is aminomethylphosphonic acid (AMPA). In animals and plants, glyphosate is poorly metabolised with AMPA being the main metabolite.

A dietary risk assessment was conducted. Food products for analysis were not selected purely at random, rather products were selected for which high levels of glyphosate residues were suspected. However, even in samples where high residue levels were expected, no exceedances of maximum residue levels were found. Consequently, human exposure did not exceed neither acceptable daily intake nor acute reference dose. Therefore, glyphosate residues found in the sampled foodstuffs from the Swiss market were of no concern for human health.

Zoller, Otmar, et al. "Glyphosate residues in Swiss market foods: monitoring and risk evaluation." Food Additives & Contaminants: Part B 11.2 (2018): 83-91.

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